One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's a good idea to plant chard in Princeton by checking out the USDA zone info.

Planting Calendar for Chard

Frost tolerance for chard:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since chard are moderately cold tolerant you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant chard in Princeton is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant chard and expect a good harvest is probably August. You probably don't want to wait any later than that or else your chard may not have a chance to really do well. Starting your chard indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Princeton. You should expect an average low temperature of -30°F in the coldest months of winter.

Since the USDA zone info for Princeton is an average the actual date of last frost is different every year. Since half of the time in Princeton there is a last frost after May 15 be ready to cover your chard in the event of a surprise late frost.

USDA Zone Info for Princeton

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Princeton

You may be interested in your other planting guides for Princeton.